Gravitational Waves from Inspiralling Compact Binaries in ... - LUTH

Gravitational Waves from Inspiralling Compact Binaries in ... - LUTH Gravitational Waves from Inspiralling Compact Binaries in ... - LUTH

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Eccentric Binaries Based on Koenigdorffer and Gopakumar Stellar-mass compact binaries in eccentric orbits are excellent sources for LISA. LISA will “hear” GW from intermediate-mass black holes moving in highly eccentric orbits K. Gültekin, M. C. Miller, and D. P. Hamilton (2005), T. Matsubayashi, J. Makino, and T. Ebisuzaki (2005), M. A. Gürkan, J. M. Fregeau, and F. A. Rasio (2005) Several papers indicate that SMBHB formed from galactic mergers, may coalesce with orbital eccentricity S. J. Aarseth (2003), P. Berczik, D. Merritt, R. Spurzem, and H.-P. Bischof (2006), O. Blaes, M. H. Lee, and A. Socrates( 2002), P. J. Armitage and P. Natarajan (2005), M. Iwasawa, Y. Funato, and J. Makino (2005) These investigations employ different techniques and astrophysical scenarios to reach the above conclusion. BRI-IHP06-I – p.3/??

Kozai Mechanism One proposed astrophysical scenario, involves hierarchical triplets modeled to consist of an inner and an outer binary. If the mutual inclination angle between the orbital planes of the inner and of the outer binary is large enough, then the time averaged tidal force on the inner binary may induce oscillations in its eccentricity, known in the literature as the Kozai mechanism Kozai (1962),M. C. Miller and D. P. Hamilton (2002), E. B. Ford, B. Kozinsky, and F. A. Rasio (2000), Wen (2003) BRI-IHP06-I – p.4/??

Eccentric <strong>B<strong>in</strong>aries</strong><br />

Based on Koenigdorffer and Gopakumar<br />

Stellar-mass compact b<strong>in</strong>aries <strong>in</strong> eccentric orbits are<br />

excellent sources for LISA.<br />

LISA will “hear” GW <strong>from</strong> <strong>in</strong>termediate-mass black holes<br />

mov<strong>in</strong>g <strong>in</strong> highly eccentric orbits<br />

K. Gültek<strong>in</strong>, M. C. Miller, and D. P. Hamilton (2005), T. Matsubayashi, J. Mak<strong>in</strong>o, and T. Ebisuzaki (2005),<br />

M. A. Gürkan, J. M. Fregeau, and F. A. Rasio (2005)<br />

Several papers <strong>in</strong>dicate that SMBHB formed <strong>from</strong><br />

galactic mergers, may coalesce with orbital<br />

eccentricity<br />

S. J. Aarseth (2003), P. Berczik, D. Merritt, R. Spurzem, and H.-P. Bischof (2006), O. Blaes, M. H. Lee, and<br />

A. Socrates( 2002), P. J. Armitage and P. Natarajan (2005), M. Iwasawa, Y. Funato, and J. Mak<strong>in</strong>o (2005)<br />

These <strong>in</strong>vestigations employ different techniques and<br />

astrophysical scenarios to reach the above conclusion.<br />

BRI-IHP06-I – p.3/??

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